12102011211222 has 144 divisors (see below), whose sum is σ = 26915589792000. Its totient is φ = 3929763202560.

The previous prime is 12102011211221. The next prime is 12102011211229. The reversal of 12102011211222 is 22211211020121.

12102011211222 is a `hidden beast` number, since 1 + 210 + 20 + 1 + 1 + 211 + 222 = 666.

It is a super-3 number, since 3×12102011211222³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12102011211195 and 12102011211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102011211221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7812788904 + ... + 7812790452.

It is an arithmetic number, because the mean of its divisors is an integer number (186913818000).

Almost surely, 2^{12102011211222} is an apocalyptic number.

12102011211222 is an abundant number, since it is smaller than the sum of its proper divisors (14813578580778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12102011211222 is a wasteful number, since it uses less digits than its factorization.

12102011211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12102011211222 its reverse (22211211020121), we get a palindrome (34313222231343).

The spelling of 12102011211222 in words is "twelve trillion, one hundred two billion, eleven million, two hundred eleven thousand, two hundred twenty-two".